gaming improvements

- switched to cachyos-bore kernel from mainline lts kernel
- pinned mesa version at 25 to fix issues with minecraft shaders
- switched steam to use the flatpak, since native steam wouldn't launch with the downgraded mesa version

hosts/takamaki/default.nix

@@ -2,27 +2,38 @@
   config,
   pkgs,
   inputs,
+  pkgs-mesa-overlay,
   ...
 }: let
 modules-dir = ../../modules;
 in {
   imports = [
-    inputs.nixos-millennium.nixosModules.default
+    # inputs.nixos-millennium.nixosModules.default
     ../../global-default.nix
     ./hardware-configuration.nix
     "${modules-dir}/display-managers/sddm.nix"
     "${modules-dir}/desktop-environments/plasma6.nix"
     "${modules-dir}/zsh.nix"
     ./modules/openssh.nix
+    ./modules/sudo.nix
   ];
 
-  programs.steam = {
-    enable = true;
-    remotePlay.openFirewall = true;
-    dedicatedServer.openFirewall = true;
-    extraCompatPackages = [ pkgs.proton-ge-bin ];
-    extraPackages = [ pkgs.hidapi ];
-  };
+  nixpkgs.overlays = [ 
+    inputs.nix-cachyos-kernel.overlays.pinned
+    (final: prev: {
+      mesa = pkgs-mesa-overlay.mesa;
+    })
+  ];
+
+  boot.kernelPackages = pkgs.cachyosKernels.linuxPackages-cachyos-bore-zen4;
+
+  environment.systemPackages = with pkgs; [
+    efibootmgr
+  ];
+
+  hardware.steam-hardware.enable = true;
+
+  environment.localBinInPath = true;
 
   programs.dconf.enable = true; # apparently necessary for easyeffects to work in home.nix